Side frame.



W. C. HEDGCOCK.

SIDE'FRAME.

APPLICATION FILED MAY 10, 1915.

Patented Feb. 1, 1916.

1': Mill 1 11 III/II wma6aax the short leg having a WILLIAM. C.

sine FRAME.

Toallwho mit may concern:

Be it known that I, ILLnmr-Q'TI-IE-DG- coon, a citizen of the United' States, and resident of Chicago," in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Side Frames, of which the following is a specification.

My invention relates to car trucks and has particular reference to a novel' side frame for use in connection therewith.

A desirableob'je'ct-in' "car-truck construe tion is to provide side frames which shall combine the elements .of rigidity, strength, minimum weight and economy in construction. Some of these'objects may be attained in the use of cast steel frames, but such frames are quite heavy and their. cost is greater than that of a properly designed frame'of rolled or pressed material. In the construction herein disclosed I have provided for maximum strength by so locating the difierent elements as'to secure the greatest efliciency'. Furthermore, the disposition of metal provides for great rigidity, and by welding the parts together the frame has the attributes of a single casting.

The invention will stood by reference drawings, wherein- Figure 1 is a side constructed in accordance with my invention, Fig. 2 is a plan view of the construction shown in to the accompanying Fig. 1, Flg. 3 is a section on the line 3-3 of Fig. 1, and Fig. 4: is a section on the line 1-41: of Fig. 1.

Referring. more particularly to the drawings, it will be seen pression member consisting of two angles, each thereof having its long leg 10, placed vertically and its short leg 11, horizontally, bulb or stiffening flange 12, which projects downwardly. The two angles are placed back to b ack, as best shown in Fig. 2, being separated at their middle portions by the upper ends of the struts which act as columns. These columns are likewise composed of angles of commercial form, each angle 13, being bent into U-shape, the flange 14, being terminated just beneath the compression member, the other flange extending between the two angles forming the compression member and being spot-welded therethroug At the lower end the two angles are bent outwardly to be more readily underelevation of a car truck that I provide a com-' nnneooc x, or omceeohinnruors, .ASSIGNQB are 'A'MEEICAN STEEL AaCQBPDBATIONflF. .JEBSEY- asse s. .11 ,rratfe iitea net. 1, fails.

Application filcd May 1o. i915. serial Ita -eased accommodate the vertical leg-15, of the tension meber, whicln asbest shown in Fig: 3, ris-of 'l' sh-ape. 1 I

' Atthe ends,-the compressionmeinb'ers are arched or bent downwardly, as at 16, the vertical legs 10, thereof being spa'ced apart suffic'iently to accommodate-{the leg 15, of the tensionmem-ber, this member being likewisebent downward and serving as a jaw 17, between which a -j-ournalbox-=may be accommodated. Opposed to the jaw 17 is a jaw*18, which maybe formed from a forgingand welded to the tension member. s

..a means for attaching the journal box, I

provide the apertured lug 19, as best shown in Fig. 1, this being welded to the tension 125nd compression members above the journal In order to provide a simple brake hanger bracket, I provide a bar 20, bent into U- shape, one leg of the U being welded to a column 13, the other leg being apertured to accommodate a pin 21. The brace member may consist of the bar 22, bent to the proper shape and having its lower end also welded to the column 13. An aperture in the upper end of the bar registers with the opening in the bar 20. The free upper end of the bar 22, may be welded to the bar 20.

It will be noted that this frame is built up from commercial shapes which may be economically produced, and that after being bent and combined in the form shown by welding, a rigid and substantially integral structure is produced. The cost of assembling such a frame is relatively small, and as the greatest strength is possible for a given weight in the rolled material shown, such a frame will be found to be efficient and much more economical in first cost than frames constructed in a difierent manner.

While I have referred to the shapes as being formed by rolling, it will be understood that they might be pressed with equal facility; also that the parts might be riveted together in some instances instead of welding, all without departure from the spirit of my invention.

I claim:

1. In a side frame, the combination of a compression member composed of two bulb angles placed back to back, a tension member of rolled or pressed form, and a strut interlocking the said compression and tension members, the parts being rigidly united to form a substantially integral structure, substantially as described.

In a side frame,

lar shapes, a tension member of a single angular shape, one flange of said tension member being accommodated between the elements of the compression member at the ends of the frame, and a strut separating said members, said strut being composed of two angles, each of which is bent into; U- shape, said members beingthen welded together and welded to the compression and tension members of the frame, substantially as described. i

3. In a side frame, the combinationof a compression member composed of a pair of bulb angles placed back to back,a tension member of T-shape, the leg of the. T being accommodated between the two elements of v the combination of a compresslon member composed of two anguthe compression member at the ends of the frame, andfa strut composed of .two members, the upper ends of which are accommodated between the elements of the compression member, substantially as described.

4. In a built-up side frame, the combination of tension and compression members and a strut, and a brake hanger bracket composedof a plurality of bars, one end of each of which is Welded to the said strut, the other ends of said bars being spaced apart and apertured to accommodate a hanger pin, substantially'as described.

Signed at of May, 1915.

WILLIAM o. HEDGcoc Q Witnesses V l CHAS. T. MURRAY, T. D. BUTLER.

D this P n may be obtained for five cents each, by addressing "c is of pa Washington. 1). c." H i a v Chicago, Illinois, this 6th day 

